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Astron. Astrophys. 350, L19-L22 (1999)

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2. Observational data

The observational data were collected by the OGLE collaboration in their second phase of microlensing search (Udalski et al. 1997). The search was done with the 1.3-m Warsaw telescope at the Las Campanas Observatory, Chile which is operated by the Carnegie Institution of Washington. The targets of the OGLE II experiment include the LMC, SMC, Galactic bulge and spiral arms. All the collected data were reduced and calibrated to the standard system. For more details on the instrumentation setup and data reduction, see Udalski et al. (1997, 1998).

The event, OGLE-1999-CAR-1, was detected and announced in real-time on Feb. 19, 1999 by the OGLE collaboration 1. Its equatorial coordinates are [FORMULA]=11:07:26.72, [FORMULA]=-61:22:30.6 (J2000), which corresponds to Galactic coordinates [FORMULA]. The ecliptic coordinates of the lensed star are [FORMULA], [FORMULA] (e.g., Lang 1980). Finding chart and I -band data of OGLE-1999-CAR-1 are available at the above web site and the V -band data were made available to us by Dr. Andrzej Udalski. In total, there are 416 I -band and 85 V -band data points. The baseline magnitudes of the object 2, in the standard Johnson V and Cousins I -band, are [FORMULA].

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© European Southern Observatory (ESO) 1999

Online publication: October 4, 1999